Rotation and Revolution
Seasons and Tilt
Lunar Cycle and Tides
Classifying Stars
Universe Discoveries
100
Copernicus
Who explained that the planets revolve around the sun in the center of the solar system? (1D)
100
The tilt of the axis
What causes the Earth to have seasons? (2B)
100
The gravitational pull of the Moon.
What causes the tides? (3D)
100
Main Sequence
What shows that most stars increase in brightness with increasing temperature? (4C)
100
Kepler
Who discovered that the planets' orbits werre elliptical? (5C)
200
Rotation
What is the turning of an object on its axis? (1F)
200
Summer
What is the season when the Northern Hemisphere receives the most direct rays of sunlight? (2A)
200
New Moon
What is it called when the Earth is between the Sun and the Moon? (3A)
200
Blue
What color has the shortest wavelength? (4A)
200
Galileo
Who first used a telescope to learn about the universe? (5A)
300
1 month
How long does it take for the moon to revolve around the Earth? (1A)
300
The distance between Sun and Earth
What does NOT cause the seasons? (2E)
300
One Month
How long does it take to change from full moon back to full moon? (3B)
300
Dimmer
A star the same size as the sun that was farther would look...(4F)
300
Hubble
Who found evidence for the expansion of the Universe? (5B)
400
Orbit
What is the name for the path of motion of a planet around its star? (1C)
400
Solstice
What is the name for the time when daylight and darkness are equal? (2F)
400
Revolution
What is name for the motio of the Moon around the Earth? (3C)
400
Red
What color are the coolest stars? (4B)
400
Herschel
Who found evidence for the Milky Way?
500
1 day
How long does it take for the Earth to rotate on its axis? (1B)
500
Winter
During what season do we experience the coolest temperatures? (2D)
500
Spring
What is the name for the highest tides? (3D)
500
Magnitude
What describes the brightness of stars? (4E)
500
Hertzsprung and Russell
Who classified stars by brightness and temperature? (5E)
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